[PATCH hurd 07/12] exec: fix unused result warnings

[dnietoc]

From: Diego Nieto Cid <dnie...@gmail.com>

    ../../exec/main.c:153:7: warning: ignoring return value of 'asprintf' 
declared with attribute 'warn_unused_result' [-Wunused-result]
---
 exec/main.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/exec/main.c b/exec/main.c
index 57bfd137..b920497e 100644
--- a/exec/main.c
+++ b/exec/main.c
@@ -150,9 +150,9 @@ trivfs_append_args (struct trivfs_control *fsys,
 
   if (MACH_PORT_VALID (opt_device_master))
     {
-      asprintf (&opt, "--device-master-port=%u", opt_device_master);
+      int err2 = asprintf (&opt, "--device-master-port=%u", opt_device_master);
 
-      if (opt)
+      if (err2 != -1)
        {
          err = argz_add (argz, argz_len, opt);
          free (opt);
-- 
2.51.0